src/processes.c

   1 /**
   2  * collectd - src/processes.c
   3  * Copyright (C) 2005       Lyonel Vincent
   4  * Copyright (C) 2006-2010  Florian octo Forster
   5  * Copyright (C) 2008       Oleg King
   6  * Copyright (C) 2009       Sebastian Harl
   7  * Copyright (C) 2009       Andrés J. Díaz
   8  * Copyright (C) 2009       Manuel Sanmartin
   9  * Copyright (C) 2010       Clément Stenac
  10  * Copyright (C) 2012       Cosmin Ioiart
  11  *
  12  * This program is free software; you can redistribute it and/or modify it
  13  * under the terms of the GNU General Public License as published by the
  14  * Free Software Foundation; either version 2 of the License, or (at your
  15  * option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful, but
  18  * WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20  * General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License along
  23  * with this program; if not, write to the Free Software Foundation, Inc.,
  24  * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  25  *
  26  * Authors:
  27  *   Lyonel Vincent <lyonel at ezix.org>
  28  *   Florian octo Forster <octo at collectd.org>
  29  *   Oleg King <king2 at kaluga.ru>
  30  *   Sebastian Harl <sh at tokkee.org>
  31  *   Andrés J. Díaz <ajdiaz at connectical.com>
  32  *   Manuel Sanmartin
  33  *   Clément Stenac <clement.stenac at diwi.org>
  34  *   Cosmin Ioiart <cioiart at gmail.com>
  35  **/
  36
  37 #include "collectd.h"
  38 #include "common.h"
  39 #include "plugin.h"
  40 #include "configfile.h"
  41
  42 /* Include header files for the mach system, if they exist.. */
  43 #if HAVE_THREAD_INFO
  44 #  if HAVE_MACH_MACH_INIT_H
  45 #    include <mach/mach_init.h>
  46 #  endif
  47 #  if HAVE_MACH_HOST_PRIV_H
  48 #    include <mach/host_priv.h>
  49 #  endif
  50 #  if HAVE_MACH_MACH_ERROR_H
  51 #    include <mach/mach_error.h>
  52 #  endif
  53 #  if HAVE_MACH_MACH_HOST_H
  54 #    include <mach/mach_host.h>
  55 #  endif
  56 #  if HAVE_MACH_MACH_PORT_H
  57 #    include <mach/mach_port.h>
  58 #  endif
  59 #  if HAVE_MACH_MACH_TYPES_H
  60 #    include <mach/mach_types.h>
  61 #  endif
  62 #  if HAVE_MACH_MESSAGE_H
  63 #    include <mach/message.h>
  64 #  endif
  65 #  if HAVE_MACH_PROCESSOR_SET_H
  66 #    include <mach/processor_set.h>
  67 #  endif
  68 #  if HAVE_MACH_TASK_H
  69 #    include <mach/task.h>
  70 #  endif
  71 #  if HAVE_MACH_THREAD_ACT_H
  72 #    include <mach/thread_act.h>
  73 #  endif
  74 #  if HAVE_MACH_VM_REGION_H
  75 #    include <mach/vm_region.h>
  76 #  endif
  77 #  if HAVE_MACH_VM_MAP_H
  78 #    include <mach/vm_map.h>
  79 #  endif
  80 #  if HAVE_MACH_VM_PROT_H
  81 #    include <mach/vm_prot.h>
  82 #  endif
  83 #  if HAVE_SYS_SYSCTL_H
  84 #    include <sys/sysctl.h>
  85 #  endif
  86 /* #endif HAVE_THREAD_INFO */
  87
  88 #elif KERNEL_LINUX
  89 #  if HAVE_LINUX_CONFIG_H
  90 #    include <linux/config.h>
  91 #  endif
  92 #  ifndef CONFIG_HZ
  93 #    define CONFIG_HZ 100
  94 #  endif
  95 /* #endif KERNEL_LINUX */
  96
  97 #elif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
  98 #  include <kvm.h>
  99 #  include <sys/param.h>
 100 #  include <sys/sysctl.h>
 101 #  include <sys/user.h>
 102 #  include <sys/proc.h>
 103 /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD) */
 104
 105 #elif HAVE_PROCINFO_H
 106 #  include <procinfo.h>
 107 #  include <sys/types.h>
 108
 109 #define MAXPROCENTRY 32
 110 #define MAXTHRDENTRY 16
 111 #define MAXARGLN 1024
 112 /* #endif HAVE_PROCINFO_H */
 113
 114 #elif KERNEL_SOLARIS
 115 /* Hack: Avoid #error when building a 32-bit binary with
 116  * _FILE_OFFSET_BITS=64. There is a reason for this #error, as one
 117  * of the structures in <sys/procfs.h> uses an off_t, but that
 118  * isn't relevant to our usage of procfs. */
 119 #if !defined(_LP64) && _FILE_OFFSET_BITS == 64
 120 #  define SAVE_FOB_64
 121 #  undef _FILE_OFFSET_BITS
 122 #endif
 123
 124 # include <procfs.h>
 125
 126 #ifdef SAVE_FOB_64
 127 #  define _FILE_OFFSET_BITS 64
 128 #  undef SAVE_FOB_64
 129 #endif
 130
 131 # include <dirent.h>
 132 /* #endif KERNEL_SOLARIS */
 133
 134 #else
 135 # error "No applicable input method."
 136 #endif
 137
 138 #if HAVE_REGEX_H
 139 # include <regex.h>
 140 #endif
 141
 142 #if HAVE_KSTAT_H
 143 # include <kstat.h>
 144 #endif
 145
 146 #ifndef CMDLINE_BUFFER_SIZE
 147 # if defined(ARG_MAX) && (ARG_MAX < 4096)
 148 #  define CMDLINE_BUFFER_SIZE ARG_MAX
 149 # else
 150 #  define CMDLINE_BUFFER_SIZE 4096
 151 # endif
 152 #endif
 153
 154 typedef struct procstat_entry_s
 155 {
 156         unsigned long id;
 157         unsigned long age;
 158
 159         unsigned long num_proc;
 160         unsigned long num_lwp;
 161         unsigned long vmem_size;
 162         unsigned long vmem_rss;
 163         unsigned long vmem_data;
 164         unsigned long vmem_code;
 165         unsigned long stack_size;
 166
 167         unsigned long vmem_minflt;
 168         unsigned long vmem_majflt;
 169         derive_t      vmem_minflt_counter;
 170         derive_t      vmem_majflt_counter;
 171
 172         unsigned long cpu_user;
 173         unsigned long cpu_system;
 174         derive_t      cpu_user_counter;
 175         derive_t      cpu_system_counter;
 176
 177         /* io data */
 178         derive_t io_rchar;
 179         derive_t io_wchar;
 180         derive_t io_syscr;
 181         derive_t io_syscw;
 182
 183         struct procstat_entry_s *next;
 184 } procstat_entry_t;
 185
 186 #define PROCSTAT_NAME_LEN 256
 187 typedef struct procstat
 188 {
 189         char          name[PROCSTAT_NAME_LEN];
 190 #if HAVE_REGEX_H
 191         regex_t *re;
 192 #endif
 193
 194         unsigned long num_proc;
 195         unsigned long num_lwp;
 196         unsigned long vmem_size;
 197         unsigned long vmem_rss;
 198         unsigned long vmem_data;
 199         unsigned long vmem_code;
 200         unsigned long stack_size;
 201
 202         derive_t vmem_minflt_counter;
 203         derive_t vmem_majflt_counter;
 204
 205         derive_t cpu_user_counter;
 206         derive_t cpu_system_counter;
 207
 208         /* io data */
 209         derive_t io_rchar;
 210         derive_t io_wchar;
 211         derive_t io_syscr;
 212         derive_t io_syscw;
 213
 214         struct procstat   *next;
 215         struct procstat_entry_s *instances;
 216 } procstat_t;
 217
 218 static procstat_t *list_head_g = NULL;
 219
 220 #if HAVE_THREAD_INFO
 221 static mach_port_t port_host_self;
 222 static mach_port_t port_task_self;
 223
 224 static processor_set_name_array_t pset_list;
 225 static mach_msg_type_number_t     pset_list_len;
 226 /* #endif HAVE_THREAD_INFO */
 227
 228 #elif KERNEL_LINUX
 229 static long pagesize_g;
 230 /* #endif KERNEL_LINUX */
 231
 232 #elif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
 233 static int pagesize;
 234 /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD) */
 235
 236 #elif HAVE_PROCINFO_H
 237 static  struct procentry64 procentry[MAXPROCENTRY];
 238 static  struct thrdentry64 thrdentry[MAXTHRDENTRY];
 239 static int pagesize;
 240
 241 #ifndef _AIXVERSION_610
 242 int     getprocs64 (void *procsinfo, int sizproc, void *fdsinfo, int sizfd, pid_t *index, int count);
 243 int     getthrds64( pid_t, void *, int, tid64_t *, int );
 244 #endif
 245 int getargs (void *processBuffer, int bufferLen, char *argsBuffer, int argsLen);
 246 #endif /* HAVE_PROCINFO_H */
 247
 248 /* put name of process from config to list_head_g tree
 249  * list_head_g is a list of 'procstat_t' structs with
 250  * processes names we want to watch */
 251 static void ps_list_register (const char *name, const char *regexp)
 252 {
 253         procstat_t *new;
 254         procstat_t *ptr;
 255         int status;
 256
 257         new = (procstat_t *) malloc (sizeof (procstat_t));
 258         if (new == NULL)
 259         {
 260                 ERROR ("processes plugin: ps_list_register: malloc failed.");
 261                 return;
 262         }
 263         memset (new, 0, sizeof (procstat_t));
 264         sstrncpy (new->name, name, sizeof (new->name));
 265
 266 #if HAVE_REGEX_H
 267         if (regexp != NULL)
 268         {
 269                 DEBUG ("ProcessMatch: adding \"%s\" as criteria to process %s.", regexp, name);
 270                 new->re = (regex_t *) malloc (sizeof (regex_t));
 271                 if (new->re == NULL)
 272                 {
 273                         ERROR ("processes plugin: ps_list_register: malloc failed.");
 274                         sfree (new);
 275                         return;
 276                 }
 277
 278                 status = regcomp (new->re, regexp, REG_EXTENDED | REG_NOSUB);
 279                 if (status != 0)
 280                 {
 281                         DEBUG ("ProcessMatch: compiling the regular expression \"%s\" failed.", regexp);
 282                         sfree(new->re);
 283                         return;
 284                 }
 285         }
 286 #else
 287         if (regexp != NULL)
 288         {
 289                 ERROR ("processes plugin: ps_list_register: "
 290                                 "Regular expression \"%s\" found in config "
 291                                 "file, but support for regular expressions "
 292                                 "has been disabled at compile time.",
 293                                 regexp);
 294                 sfree (new);
 295                 return;
 296         }
 297 #endif
 298
 299         for (ptr = list_head_g; ptr != NULL; ptr = ptr->next)
 300         {
 301                 if (strcmp (ptr->name, name) == 0)
 302                 {
 303                         WARNING ("processes plugin: You have configured more "
 304                                         "than one `Process' or "
 305                                         "`ProcessMatch' with the same name. "
 306                                         "All but the first setting will be "
 307                                         "ignored.");
 308                         sfree (new->re);
 309                         sfree (new);
 310                         return;
 311                 }
 312
 313                 if (ptr->next == NULL)
 314                         break;
 315         }
 316
 317         if (ptr == NULL)
 318                 list_head_g = new;
 319         else
 320                 ptr->next = new;
 321 } /* void ps_list_register */
 322
 323 /* try to match name against entry, returns 1 if success */
 324 static int ps_list_match (const char *name, const char *cmdline, procstat_t *ps)
 325 {
 326 #if HAVE_REGEX_H
 327         if (ps->re != NULL)
 328         {
 329                 int status;
 330                 const char *str;
 331
 332                 str = cmdline;
 333                 if ((str == NULL) || (str[0] == 0))
 334                         str = name;
 335
 336                 assert (str != NULL);
 337
 338                 status = regexec (ps->re, str,
 339                                 /* nmatch = */ 0,
 340                                 /* pmatch = */ NULL,
 341                                 /* eflags = */ 0);
 342                 if (status == 0)
 343                         return (1);
 344         }
 345         else
 346 #endif
 347         if (strcmp (ps->name, name) == 0)
 348                 return (1);
 349
 350         return (0);
 351 } /* int ps_list_match */
 352
 353 /* add process entry to 'instances' of process 'name' (or refresh it) */
 354 static void ps_list_add (const char *name, const char *cmdline, procstat_entry_t *entry)
 355 {
 356         procstat_t *ps;
 357         procstat_entry_t *pse;
 358
 359         if (entry->id == 0)
 360                 return;
 361
 362         for (ps = list_head_g; ps != NULL; ps = ps->next)
 363         {
 364                 if ((ps_list_match (name, cmdline, ps)) == 0)
 365                         continue;
 366
 367                 for (pse = ps->instances; pse != NULL; pse = pse->next)
 368                         if ((pse->id == entry->id) || (pse->next == NULL))
 369                                 break;
 370
 371                 if ((pse == NULL) || (pse->id != entry->id))
 372                 {
 373                         procstat_entry_t *new;
 374
 375                         new = (procstat_entry_t *) malloc (sizeof (procstat_entry_t));
 376                         if (new == NULL)
 377                                 return;
 378                         memset (new, 0, sizeof (procstat_entry_t));
 379                         new->id = entry->id;
 380
 381                         if (pse == NULL)
 382                                 ps->instances = new;
 383                         else
 384                                 pse->next = new;
 385
 386                         pse = new;
 387                 }
 388
 389                 pse->age = 0;
 390                 pse->num_proc   = entry->num_proc;
 391                 pse->num_lwp    = entry->num_lwp;
 392                 pse->vmem_size  = entry->vmem_size;
 393                 pse->vmem_rss   = entry->vmem_rss;
 394                 pse->vmem_data  = entry->vmem_data;
 395                 pse->vmem_code  = entry->vmem_code;
 396                 pse->stack_size = entry->stack_size;
 397                 pse->io_rchar   = entry->io_rchar;
 398                 pse->io_wchar   = entry->io_wchar;
 399                 pse->io_syscr   = entry->io_syscr;
 400                 pse->io_syscw   = entry->io_syscw;
 401
 402                 ps->num_proc   += pse->num_proc;
 403                 ps->num_lwp    += pse->num_lwp;
 404                 ps->vmem_size  += pse->vmem_size;
 405                 ps->vmem_rss   += pse->vmem_rss;
 406                 ps->vmem_data  += pse->vmem_data;
 407                 ps->vmem_code  += pse->vmem_code;
 408                 ps->stack_size += pse->stack_size;
 409
 410                 ps->io_rchar   += ((pse->io_rchar == -1)?0:pse->io_rchar);
 411                 ps->io_wchar   += ((pse->io_wchar == -1)?0:pse->io_wchar);
 412                 ps->io_syscr   += ((pse->io_syscr == -1)?0:pse->io_syscr);
 413                 ps->io_syscw   += ((pse->io_syscw == -1)?0:pse->io_syscw);
 414
 415                 if ((entry->vmem_minflt_counter == 0)
 416                                 && (entry->vmem_majflt_counter == 0))
 417                 {
 418                         pse->vmem_minflt_counter += entry->vmem_minflt;
 419                         pse->vmem_minflt = entry->vmem_minflt;
 420
 421                         pse->vmem_majflt_counter += entry->vmem_majflt;
 422                         pse->vmem_majflt = entry->vmem_majflt;
 423                 }
 424                 else
 425                 {
 426                         if (entry->vmem_minflt_counter < pse->vmem_minflt_counter)
 427                         {
 428                                 pse->vmem_minflt = entry->vmem_minflt_counter
 429                                         + (ULONG_MAX - pse->vmem_minflt_counter);
 430                         }
 431                         else
 432                         {
 433                                 pse->vmem_minflt = entry->vmem_minflt_counter - pse->vmem_minflt_counter;
 434                         }
 435                         pse->vmem_minflt_counter = entry->vmem_minflt_counter;
 436
 437                         if (entry->vmem_majflt_counter < pse->vmem_majflt_counter)
 438                         {
 439                                 pse->vmem_majflt = entry->vmem_majflt_counter
 440                                         + (ULONG_MAX - pse->vmem_majflt_counter);
 441                         }
 442                         else
 443                         {
 444                                 pse->vmem_majflt = entry->vmem_majflt_counter - pse->vmem_majflt_counter;
 445                         }
 446                         pse->vmem_majflt_counter = entry->vmem_majflt_counter;
 447                 }
 448
 449                 ps->vmem_minflt_counter += pse->vmem_minflt;
 450                 ps->vmem_majflt_counter += pse->vmem_majflt;
 451
 452                 if ((entry->cpu_user_counter == 0)
 453                                 && (entry->cpu_system_counter == 0))
 454                 {
 455                         pse->cpu_user_counter += entry->cpu_user;
 456                         pse->cpu_user = entry->cpu_user;
 457
 458                         pse->cpu_system_counter += entry->cpu_system;
 459                         pse->cpu_system = entry->cpu_system;
 460                 }
 461                 else
 462                 {
 463                         if (entry->cpu_user_counter < pse->cpu_user_counter)
 464                         {
 465                                 pse->cpu_user = entry->cpu_user_counter
 466                                         + (ULONG_MAX - pse->cpu_user_counter);
 467                         }
 468                         else
 469                         {
 470                                 pse->cpu_user = entry->cpu_user_counter - pse->cpu_user_counter;
 471                         }
 472                         pse->cpu_user_counter = entry->cpu_user_counter;
 473
 474                         if (entry->cpu_system_counter < pse->cpu_system_counter)
 475                         {
 476                                 pse->cpu_system = entry->cpu_system_counter
 477                                         + (ULONG_MAX - pse->cpu_system_counter);
 478                         }
 479                         else
 480                         {
 481                                 pse->cpu_system = entry->cpu_system_counter - pse->cpu_system_counter;
 482                         }
 483                         pse->cpu_system_counter = entry->cpu_system_counter;
 484                 }
 485
 486                 ps->cpu_user_counter   += pse->cpu_user;
 487                 ps->cpu_system_counter += pse->cpu_system;
 488         }
 489 }
 490
 491 /* remove old entries from instances of processes in list_head_g */
 492 static void ps_list_reset (void)
 493 {
 494         procstat_t *ps;
 495         procstat_entry_t *pse;
 496         procstat_entry_t *pse_prev;
 497
 498         for (ps = list_head_g; ps != NULL; ps = ps->next)
 499         {
 500                 ps->num_proc    = 0;
 501                 ps->num_lwp     = 0;
 502                 ps->vmem_size   = 0;
 503                 ps->vmem_rss    = 0;
 504                 ps->vmem_data   = 0;
 505                 ps->vmem_code   = 0;
 506                 ps->stack_size  = 0;
 507                 ps->io_rchar = -1;
 508                 ps->io_wchar = -1;
 509                 ps->io_syscr = -1;
 510                 ps->io_syscw = -1;
 511
 512                 pse_prev = NULL;
 513                 pse = ps->instances;
 514                 while (pse != NULL)
 515                 {
 516                         if (pse->age > 10)
 517                         {
 518                                 DEBUG ("Removing this procstat entry cause it's too old: "
 519                                                 "id = %lu; name = %s;",
 520                                                 pse->id, ps->name);
 521
 522                                 if (pse_prev == NULL)
 523                                 {
 524                                         ps->instances = pse->next;
 525                                         free (pse);
 526                                         pse = ps->instances;
 527                                 }
 528                                 else
 529                                 {
 530                                         pse_prev->next = pse->next;
 531                                         free (pse);
 532                                         pse = pse_prev->next;
 533                                 }
 534                         }
 535                         else
 536                         {
 537                                 pse->age++;
 538                                 pse_prev = pse;
 539                                 pse = pse->next;
 540                         }
 541                 } /* while (pse != NULL) */
 542         } /* for (ps = list_head_g; ps != NULL; ps = ps->next) */
 543 }
 544
 545 /* put all pre-defined 'Process' names from config to list_head_g tree */
 546 static int ps_config (oconfig_item_t *ci)
 547 {
 548         int i;
 549
 550         for (i = 0; i < ci->children_num; ++i) {
 551                 oconfig_item_t *c = ci->children + i;
 552
 553                 if (strcasecmp (c->key, "Process") == 0)
 554                 {
 555                         if ((c->values_num != 1)
 556                                         || (OCONFIG_TYPE_STRING != c->values[0].type)) {
 557                                 ERROR ("processes plugin: `Process' expects exactly "
 558                                                 "one string argument (got %i).",
 559                                                 c->values_num);
 560                                 continue;
 561                         }
 562
 563                         if (c->children_num != 0) {
 564                                 WARNING ("processes plugin: the `Process' config option "
 565                                                 "does not expect any child elements -- ignoring "
 566                                                 "content (%i elements) of the <Process '%s'> block.",
 567                                                 c->children_num, c->values[0].value.string);
 568                         }
 569
 570                         ps_list_register (c->values[0].value.string, NULL);
 571                 }
 572                 else if (strcasecmp (c->key, "ProcessMatch") == 0)
 573                 {
 574                         if ((c->values_num != 2)
 575                                         || (OCONFIG_TYPE_STRING != c->values[0].type)
 576                                         || (OCONFIG_TYPE_STRING != c->values[1].type))
 577                         {
 578                                 ERROR ("processes plugin: `ProcessMatch' needs exactly "
 579                                                 "two string arguments (got %i).",
 580                                                 c->values_num);
 581                                 continue;
 582                         }
 583
 584                         if (c->children_num != 0) {
 585                                 WARNING ("processes plugin: the `ProcessMatch' config option "
 586                                                 "does not expect any child elements -- ignoring "
 587                                                 "content (%i elements) of the <ProcessMatch '%s' '%s'> "
 588                                                 "block.", c->children_num, c->values[0].value.string,
 589                                                 c->values[1].value.string);
 590                         }
 591
 592                         ps_list_register (c->values[0].value.string,
 593                                         c->values[1].value.string);
 594                 }
 595                 else
 596                 {
 597                         ERROR ("processes plugin: The `%s' configuration option is not "
 598                                         "understood and will be ignored.", c->key);
 599                         continue;
 600                 }
 601         }
 602
 603         return (0);
 604 }
 605
 606 static int ps_init (void)
 607 {
 608 #if HAVE_THREAD_INFO
 609         kern_return_t status;
 610
 611         port_host_self = mach_host_self ();
 612         port_task_self = mach_task_self ();
 613
 614         if (pset_list != NULL)
 615         {
 616                 vm_deallocate (port_task_self,
 617                                 (vm_address_t) pset_list,
 618                                 pset_list_len * sizeof (processor_set_t));
 619                 pset_list = NULL;
 620                 pset_list_len = 0;
 621         }
 622
 623         if ((status = host_processor_sets (port_host_self,
 624                                         &pset_list,
 625                                         &pset_list_len)) != KERN_SUCCESS)
 626         {
 627                 ERROR ("host_processor_sets failed: %s\n",
 628                                 mach_error_string (status));
 629                 pset_list = NULL;
 630                 pset_list_len = 0;
 631                 return (-1);
 632         }
 633 /* #endif HAVE_THREAD_INFO */
 634
 635 #elif KERNEL_LINUX
 636         pagesize_g = sysconf(_SC_PAGESIZE);
 637         DEBUG ("pagesize_g = %li; CONFIG_HZ = %i;",
 638                         pagesize_g, CONFIG_HZ);
 639 /* #endif KERNEL_LINUX */
 640
 641 #elif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
 642         pagesize = getpagesize();
 643 /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD) */
 644
 645 #elif HAVE_PROCINFO_H
 646         pagesize = getpagesize();
 647 #endif /* HAVE_PROCINFO_H */
 648
 649         return (0);
 650 } /* int ps_init */
 651
 652 /* submit global state (e.g.: qty of zombies, running, etc..) */
 653 static void ps_submit_state (const char *state, double value)
 654 {
 655         value_t values[1];
 656         value_list_t vl = VALUE_LIST_INIT;
 657
 658         values[0].gauge = value;
 659
 660         vl.values = values;
 661         vl.values_len = 1;
 662         sstrncpy (vl.host, hostname_g, sizeof (vl.host));
 663         sstrncpy (vl.plugin, "processes", sizeof (vl.plugin));
 664         sstrncpy (vl.plugin_instance, "", sizeof (vl.plugin_instance));
 665         sstrncpy (vl.type, "ps_state", sizeof (vl.type));
 666         sstrncpy (vl.type_instance, state, sizeof (vl.type_instance));
 667
 668         plugin_dispatch_values (&vl);
 669 }
 670
 671 /* submit info about specific process (e.g.: memory taken, cpu usage, etc..) */
 672 static void ps_submit_proc_list (procstat_t *ps)
 673 {
 674         value_t values[2];
 675         value_list_t vl = VALUE_LIST_INIT;
 676
 677         vl.values = values;
 678         vl.values_len = 2;
 679         sstrncpy (vl.host, hostname_g, sizeof (vl.host));
 680         sstrncpy (vl.plugin, "processes", sizeof (vl.plugin));
 681         sstrncpy (vl.plugin_instance, ps->name, sizeof (vl.plugin_instance));
 682
 683         sstrncpy (vl.type, "ps_vm", sizeof (vl.type));
 684         vl.values[0].gauge = ps->vmem_size;
 685         vl.values_len = 1;
 686         plugin_dispatch_values (&vl);
 687
 688         sstrncpy (vl.type, "ps_rss", sizeof (vl.type));
 689         vl.values[0].gauge = ps->vmem_rss;
 690         vl.values_len = 1;
 691         plugin_dispatch_values (&vl);
 692
 693         sstrncpy (vl.type, "ps_data", sizeof (vl.type));
 694         vl.values[0].gauge = ps->vmem_data;
 695         vl.values_len = 1;
 696         plugin_dispatch_values (&vl);
 697
 698         sstrncpy (vl.type, "ps_code", sizeof (vl.type));
 699         vl.values[0].gauge = ps->vmem_code;
 700         vl.values_len = 1;
 701         plugin_dispatch_values (&vl);
 702
 703         sstrncpy (vl.type, "ps_stacksize", sizeof (vl.type));
 704         vl.values[0].gauge = ps->stack_size;
 705         vl.values_len = 1;
 706         plugin_dispatch_values (&vl);
 707
 708         sstrncpy (vl.type, "ps_cputime", sizeof (vl.type));
 709         vl.values[0].derive = ps->cpu_user_counter;
 710         vl.values[1].derive = ps->cpu_system_counter;
 711         vl.values_len = 2;
 712         plugin_dispatch_values (&vl);
 713
 714         sstrncpy (vl.type, "ps_count", sizeof (vl.type));
 715         vl.values[0].gauge = ps->num_proc;
 716         vl.values[1].gauge = ps->num_lwp;
 717         vl.values_len = 2;
 718         plugin_dispatch_values (&vl);
 719
 720         sstrncpy (vl.type, "ps_pagefaults", sizeof (vl.type));
 721         vl.values[0].derive = ps->vmem_minflt_counter;
 722         vl.values[1].derive = ps->vmem_majflt_counter;
 723         vl.values_len = 2;
 724         plugin_dispatch_values (&vl);
 725
 726         if ( (ps->io_rchar != -1) && (ps->io_wchar != -1) )
 727         {
 728                 sstrncpy (vl.type, "ps_disk_octets", sizeof (vl.type));
 729                 vl.values[0].derive = ps->io_rchar;
 730                 vl.values[1].derive = ps->io_wchar;
 731                 vl.values_len = 2;
 732                 plugin_dispatch_values (&vl);
 733         }
 734
 735         if ( (ps->io_syscr != -1) && (ps->io_syscw != -1) )
 736         {
 737                 sstrncpy (vl.type, "ps_disk_ops", sizeof (vl.type));
 738                 vl.values[0].derive = ps->io_syscr;
 739                 vl.values[1].derive = ps->io_syscw;
 740                 vl.values_len = 2;
 741                 plugin_dispatch_values (&vl);
 742         }
 743
 744         DEBUG ("name = %s; num_proc = %lu; num_lwp = %lu; "
 745                         "vmem_size = %lu; vmem_rss = %lu; vmem_data = %lu; "
 746                         "vmem_code = %lu; "
 747                         "vmem_minflt_counter = %"PRIi64"; vmem_majflt_counter = %"PRIi64"; "
 748                         "cpu_user_counter = %"PRIi64"; cpu_system_counter = %"PRIi64"; "
 749                         "io_rchar = %"PRIi64"; io_wchar = %"PRIi64"; "
 750                         "io_syscr = %"PRIi64"; io_syscw = %"PRIi64";",
 751                         ps->name, ps->num_proc, ps->num_lwp,
 752                         ps->vmem_size, ps->vmem_rss,
 753                         ps->vmem_data, ps->vmem_code,
 754                         ps->vmem_minflt_counter, ps->vmem_majflt_counter,
 755                         ps->cpu_user_counter, ps->cpu_system_counter,
 756                         ps->io_rchar, ps->io_wchar, ps->io_syscr, ps->io_syscw);
 757 } /* void ps_submit_proc_list */
 758
 759 #if KERNEL_LINUX || KERNEL_SOLARIS
 760 static void ps_submit_fork_rate (derive_t value)
 761 {
 762         value_t values[1];
 763         value_list_t vl = VALUE_LIST_INIT;
 764
 765         values[0].derive = value;
 766
 767         vl.values = values;
 768         vl.values_len = 1;
 769         sstrncpy(vl.host, hostname_g, sizeof (vl.host));
 770         sstrncpy(vl.plugin, "processes", sizeof (vl.plugin));
 771         sstrncpy(vl.plugin_instance, "", sizeof (vl.plugin_instance));
 772         sstrncpy(vl.type, "fork_rate", sizeof (vl.type));
 773         sstrncpy(vl.type_instance, "", sizeof (vl.type_instance));
 774
 775         plugin_dispatch_values(&vl);
 776 }
 777 #endif /* KERNEL_LINUX || KERNEL_SOLARIS*/
 778
 779 /* ------- additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
 780 #if KERNEL_LINUX
 781 static int ps_read_tasks (int pid)
 782 {
 783         char           dirname[64];
 784         DIR           *dh;
 785         struct dirent *ent;
 786         int count = 0;
 787
 788         ssnprintf (dirname, sizeof (dirname), "/proc/%i/task", pid);
 789
 790         if ((dh = opendir (dirname)) == NULL)
 791         {
 792                 DEBUG ("Failed to open directory `%s'", dirname);
 793                 return (-1);
 794         }
 795
 796         while ((ent = readdir (dh)) != NULL)
 797         {
 798                 if (!isdigit ((int) ent->d_name[0]))
 799                         continue;
 800                 else
 801                         count++;
 802         }
 803         closedir (dh);
 804
 805         return ((count >= 1) ? count : 1);
 806 } /* int *ps_read_tasks */
 807
 808 /* Read data from /proc/pid/status */
 809 static procstat_t *ps_read_status (int pid, procstat_t *ps)
 810 {
 811         FILE *fh;
 812         char buffer[1024];
 813         char filename[64];
 814         unsigned long long lib = 0;
 815         unsigned long long exe = 0;
 816         unsigned long long data = 0;
 817         unsigned long long threads = 0;
 818         char *fields[8];
 819         int numfields;
 820
 821         ssnprintf (filename, sizeof (filename), "/proc/%i/status", pid);
 822         if ((fh = fopen (filename, "r")) == NULL)
 823                 return (NULL);
 824
 825         while (fgets (buffer, sizeof(buffer), fh) != NULL)
 826         {
 827                 long long tmp;
 828                 char *endptr;
 829
 830                 if (strncmp (buffer, "Vm", 2) != 0
 831                                 && strncmp (buffer, "Threads", 7) != 0)
 832                         continue;
 833
 834                 numfields = strsplit (buffer, fields,
 835                                 STATIC_ARRAY_SIZE (fields));
 836
 837                 if (numfields < 2)
 838                         continue;
 839
 840                 errno = 0;
 841                 endptr = NULL;
 842                 tmp = strtoll (fields[1], &endptr, /* base = */ 10);
 843                 if ((errno == 0) && (endptr != fields[1]))
 844                 {
 845                         if (strncmp (buffer, "VmData", 6) == 0)
 846                         {
 847                                 data = tmp;
 848                         }
 849                         else if (strncmp (buffer, "VmLib", 5) == 0)
 850                         {
 851                                 lib = tmp;
 852                         }
 853                         else if  (strncmp(buffer, "VmExe", 5) == 0)
 854                         {
 855                                 exe = tmp;
 856                         }
 857                         else if  (strncmp(buffer, "Threads", 7) == 0)
 858                         {
 859                                 threads = tmp;
 860                         }
 861                 }
 862         } /* while (fgets) */
 863
 864         if (fclose (fh))
 865         {
 866                 char errbuf[1024];
 867                 WARNING ("processes: fclose: %s",
 868                                 sstrerror (errno, errbuf, sizeof (errbuf)));
 869         }
 870
 871         ps->vmem_data = data * 1024;
 872         ps->vmem_code = (exe + lib) * 1024;
 873         ps->num_lwp = threads;
 874
 875         return (ps);
 876 } /* procstat_t *ps_read_vmem */
 877
 878 static procstat_t *ps_read_io (int pid, procstat_t *ps)
 879 {
 880         FILE *fh;
 881         char buffer[1024];
 882         char filename[64];
 883
 884         char *fields[8];
 885         int numfields;
 886
 887         ssnprintf (filename, sizeof (filename), "/proc/%i/io", pid);
 888         if ((fh = fopen (filename, "r")) == NULL)
 889                 return (NULL);
 890
 891         while (fgets (buffer, sizeof (buffer), fh) != NULL)
 892         {
 893                 derive_t *val = NULL;
 894                 long long tmp;
 895                 char *endptr;
 896
 897                 if (strncasecmp (buffer, "rchar:", 6) == 0)
 898                         val = &(ps->io_rchar);
 899                 else if (strncasecmp (buffer, "wchar:", 6) == 0)
 900                         val = &(ps->io_wchar);
 901                 else if (strncasecmp (buffer, "syscr:", 6) == 0)
 902                         val = &(ps->io_syscr);
 903                 else if (strncasecmp (buffer, "syscw:", 6) == 0)
 904                         val = &(ps->io_syscw);
 905                 else
 906                         continue;
 907
 908                 numfields = strsplit (buffer, fields,
 909                                 STATIC_ARRAY_SIZE (fields));
 910
 911                 if (numfields < 2)
 912                         continue;
 913
 914                 errno = 0;
 915                 endptr = NULL;
 916                 tmp = strtoll (fields[1], &endptr, /* base = */ 10);
 917                 if ((errno != 0) || (endptr == fields[1]))
 918                         *val = -1;
 919                 else
 920                         *val = (derive_t) tmp;
 921         } /* while (fgets) */
 922
 923         if (fclose (fh))
 924         {
 925                 char errbuf[1024];
 926                 WARNING ("processes: fclose: %s",
 927                                 sstrerror (errno, errbuf, sizeof (errbuf)));
 928         }
 929
 930         return (ps);
 931 } /* procstat_t *ps_read_io */
 932
 933 int ps_read_process (int pid, procstat_t *ps, char *state)
 934 {
 935         char  filename[64];
 936         char  buffer[1024];
 937
 938         char *fields[64];
 939         char  fields_len;
 940
 941         int   buffer_len;
 942
 943         char *buffer_ptr;
 944         size_t name_start_pos;
 945         size_t name_end_pos;
 946         size_t name_len;
 947
 948         derive_t cpu_user_counter;
 949         derive_t cpu_system_counter;
 950         long long unsigned vmem_size;
 951         long long unsigned vmem_rss;
 952         long long unsigned stack_size;
 953
 954         memset (ps, 0, sizeof (procstat_t));
 955
 956         ssnprintf (filename, sizeof (filename), "/proc/%i/stat", pid);
 957
 958         buffer_len = read_file_contents (filename,
 959                         buffer, sizeof(buffer) - 1);
 960         if (buffer_len <= 0)
 961                 return (-1);
 962         buffer[buffer_len] = 0;
 963
 964         /* The name of the process is enclosed in parens. Since the name can
 965          * contain parens itself, spaces, numbers and pretty much everything
 966          * else, use these to determine the process name. We don't use
 967          * strchr(3) and strrchr(3) to avoid pointer arithmetic which would
 968          * otherwise be required to determine name_len. */
 969         name_start_pos = 0;
 970         while ((buffer[name_start_pos] != '(')
 971                         && (name_start_pos < buffer_len))
 972                 name_start_pos++;
 973
 974         name_end_pos = buffer_len;
 975         while ((buffer[name_end_pos] != ')')
 976                         && (name_end_pos > 0))
 977                 name_end_pos--;
 978
 979         /* Either '(' or ')' is not found or they are in the wrong order.
 980          * Anyway, something weird that shouldn't happen ever. */
 981         if (name_start_pos >= name_end_pos)
 982         {
 983                 ERROR ("processes plugin: name_start_pos = %zu >= name_end_pos = %zu",
 984                                 name_start_pos, name_end_pos);
 985                 return (-1);
 986         }
 987
 988         name_len = (name_end_pos - name_start_pos) - 1;
 989         if (name_len >= sizeof (ps->name))
 990                 name_len = sizeof (ps->name) - 1;
 991
 992         sstrncpy (ps->name, &buffer[name_start_pos + 1], name_len + 1);
 993
 994         if ((buffer_len - name_end_pos) < 2)
 995                 return (-1);
 996         buffer_ptr = &buffer[name_end_pos + 2];
 997
 998         fields_len = strsplit (buffer_ptr, fields, STATIC_ARRAY_SIZE (fields));
 999         if (fields_len < 22)
1000         {
1001                 DEBUG ("processes plugin: ps_read_process (pid = %i):"
1002                                 " `%s' has only %i fields..",
1003                                 (int) pid, filename, fields_len);
1004                 return (-1);
1005         }
1006
1007         *state = fields[0][0];
1008
1009         if (*state == 'Z')
1010         {
1011                 ps->num_lwp  = 0;
1012                 ps->num_proc = 0;
1013         }
1014         else
1015         {
1016                 if ( (ps_read_status(pid, ps)) == NULL)
1017                 {
1018                         /* No VMem data */
1019                         ps->vmem_data = -1;
1020                         ps->vmem_code = -1;
1021                         ps->num_lwp  = 0;
1022                         DEBUG("ps_read_process: did not get vmem data for pid %i",pid);
1023                 }
1024                 if ( ps->num_lwp <= 0)
1025                 {
1026                         if ( (ps->num_lwp = ps_read_tasks (pid)) == -1 )
1027                         {
1028                                 /* returns -1 => kernel 2.4 */
1029                                 ps->num_lwp = 1;
1030                         }
1031                 }
1032                 ps->num_proc = 1;
1033         }
1034
1035         /* Leave the rest at zero if this is only a zombi */
1036         if (ps->num_proc == 0)
1037         {
1038                 DEBUG ("processes plugin: This is only a zombi: pid = %i; "
1039                                 "name = %s;", pid, ps->name);
1040                 return (0);
1041         }
1042
1043         cpu_user_counter   = atoll (fields[11]);
1044         cpu_system_counter = atoll (fields[12]);
1045         vmem_size          = atoll (fields[20]);
1046         vmem_rss           = atoll (fields[21]);
1047         ps->vmem_minflt_counter = atol (fields[7]);
1048         ps->vmem_majflt_counter = atol (fields[9]);
1049
1050         {
1051                 unsigned long long stack_start = atoll (fields[25]);
1052                 unsigned long long stack_ptr   = atoll (fields[26]);
1053
1054                 stack_size = (stack_start > stack_ptr)
1055                         ? stack_start - stack_ptr
1056                         : stack_ptr - stack_start;
1057         }
1058
1059         /* Convert jiffies to useconds */
1060         cpu_user_counter   = cpu_user_counter   * 1000000 / CONFIG_HZ;
1061         cpu_system_counter = cpu_system_counter * 1000000 / CONFIG_HZ;
1062         vmem_rss = vmem_rss * pagesize_g;
1063
1064         ps->cpu_user_counter = cpu_user_counter;
1065         ps->cpu_system_counter = cpu_system_counter;
1066         ps->vmem_size = (unsigned long) vmem_size;
1067         ps->vmem_rss = (unsigned long) vmem_rss;
1068         ps->stack_size = (unsigned long) stack_size;
1069
1070         if ( (ps_read_io (pid, ps)) == NULL)
1071         {
1072                 /* no io data */
1073                 ps->io_rchar = -1;
1074                 ps->io_wchar = -1;
1075                 ps->io_syscr = -1;
1076                 ps->io_syscw = -1;
1077
1078                 DEBUG("ps_read_process: not get io data for pid %i",pid);
1079         }
1080
1081         /* success */
1082         return (0);
1083 } /* int ps_read_process (...) */
1084
1085 static char *ps_get_cmdline (pid_t pid, char *name, char *buf, size_t buf_len)
1086 {
1087         char  *buf_ptr;
1088         size_t len;
1089
1090         char file[PATH_MAX];
1091         int  fd;
1092
1093         size_t n;
1094
1095         if ((pid < 1) || (NULL == buf) || (buf_len < 2))
1096                 return NULL;
1097
1098         ssnprintf (file, sizeof (file), "/proc/%u/cmdline",
1099                         (unsigned int) pid);
1100
1101         errno = 0;
1102         fd = open (file, O_RDONLY);
1103         if (fd < 0) {
1104                 char errbuf[4096];
1105                 /* ENOENT means the process exited while we were handling it.
1106                  * Don't complain about this, it only fills the logs. */
1107                 if (errno != ENOENT)
1108                         WARNING ("processes plugin: Failed to open `%s': %s.", file,
1109                                         sstrerror (errno, errbuf, sizeof (errbuf)));
1110                 return NULL;
1111         }
1112
1113         buf_ptr = buf;
1114         len     = buf_len;
1115
1116         n = 0;
1117
1118         while (42) {
1119                 ssize_t status;
1120
1121                 status = read (fd, (void *)buf_ptr, len);
1122
1123                 if (status < 0) {
1124                         char errbuf[1024];
1125
1126                         if ((EAGAIN == errno) || (EINTR == errno))
1127                                 continue;
1128
1129                         WARNING ("processes plugin: Failed to read from `%s': %s.", file,
1130                                         sstrerror (errno, errbuf, sizeof (errbuf)));
1131                         close (fd);
1132                         return NULL;
1133                 }
1134
1135                 n += status;
1136
1137                 if (status == 0)
1138                         break;
1139
1140                 buf_ptr += status;
1141                 len     -= status;
1142
1143                 if (len <= 0)
1144                         break;
1145         }
1146
1147         close (fd);
1148
1149         if (0 == n) {
1150                 /* cmdline not available; e.g. kernel thread, zombie */
1151                 if (NULL == name)
1152                         return NULL;
1153
1154                 ssnprintf (buf, buf_len, "[%s]", name);
1155                 return buf;
1156         }
1157
1158         assert (n <= buf_len);
1159
1160         if (n == buf_len)
1161                 --n;
1162         buf[n] = '\0';
1163
1164         --n;
1165         /* remove trailing whitespace */
1166         while ((n > 0) && (isspace (buf[n]) || ('\0' == buf[n]))) {
1167                 buf[n] = '\0';
1168                 --n;
1169         }
1170
1171         /* arguments are separated by '\0' in /proc/<pid>/cmdline */
1172         while (n > 0) {
1173                 if ('\0' == buf[n])
1174                         buf[n] = ' ';
1175                 --n;
1176         }
1177         return buf;
1178 } /* char *ps_get_cmdline (...) */
1179
1180 static int read_fork_rate ()
1181 {
1182         FILE *proc_stat;
1183         char buffer[1024];
1184         value_t value;
1185         _Bool value_valid = 0;
1186
1187         proc_stat = fopen ("/proc/stat", "r");
1188         if (proc_stat == NULL)
1189         {
1190                 char errbuf[1024];
1191                 ERROR ("processes plugin: fopen (/proc/stat) failed: %s",
1192                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1193                 return (-1);
1194         }
1195
1196         while (fgets (buffer, sizeof (buffer), proc_stat) != NULL)
1197         {
1198                 int status;
1199                 char *fields[3];
1200                 int fields_num;
1201
1202                 fields_num = strsplit (buffer, fields,
1203                                 STATIC_ARRAY_SIZE (fields));
1204                 if (fields_num != 2)
1205                         continue;
1206
1207                 if (strcmp ("processes", fields[0]) != 0)
1208                         continue;
1209
1210                 status = parse_value (fields[1], &value, DS_TYPE_DERIVE);
1211                 if (status == 0)
1212                         value_valid = 1;
1213
1214                 break;
1215         }
1216         fclose(proc_stat);
1217
1218         if (!value_valid)
1219                 return (-1);
1220
1221         ps_submit_fork_rate (value.derive);
1222         return (0);
1223 }
1224 #endif /*KERNEL_LINUX */
1225
1226 #if KERNEL_SOLARIS
1227 static const char *ps_get_cmdline (long pid, /* {{{ */
1228                 char *buffer, size_t buffer_size)
1229 {
1230         char path[PATH_MAX];
1231         psinfo_t info;
1232         int status;
1233
1234         snprintf(path, sizeof (path), "/proc/%li/psinfo", pid);
1235
1236         status = read_file_contents (path, (void *) &info, sizeof (info));
1237         if (status != sizeof (info))
1238         {
1239                 ERROR ("processes plugin: Unexpected return value "
1240                                 "while reading \"%s\": "
1241                                 "Returned %i but expected %zu.",
1242                                 path, status, buffer_size);
1243                 return (NULL);
1244         }
1245
1246         info.pr_psargs[sizeof (info.pr_psargs) - 1] = 0;
1247         sstrncpy (buffer, info.pr_psargs, buffer_size);
1248
1249         return (buffer);
1250 } /* }}} int ps_get_cmdline */
1251
1252 /*
1253  * Reads process information on the Solaris OS. The information comes mainly from
1254  * /proc/PID/status, /proc/PID/psinfo and /proc/PID/usage
1255  * The values for input and ouput chars are calculated "by hand"
1256  * Added a few "solaris" specific process states as well
1257  */
1258 static int ps_read_process(long pid, procstat_t *ps, char *state)
1259 {
1260         char filename[64];
1261         char f_psinfo[64], f_usage[64];
1262         char *buffer;
1263
1264         pstatus_t *myStatus;
1265         psinfo_t *myInfo;
1266         prusage_t *myUsage;
1267
1268         snprintf(filename, sizeof (filename), "/proc/%li/status", pid);
1269         snprintf(f_psinfo, sizeof (f_psinfo), "/proc/%li/psinfo", pid);
1270         snprintf(f_usage, sizeof (f_usage), "/proc/%li/usage", pid);
1271
1272
1273         buffer = malloc(sizeof (pstatus_t));
1274         memset(buffer, 0, sizeof (pstatus_t));
1275         read_file_contents(filename, buffer, sizeof (pstatus_t));
1276         myStatus = (pstatus_t *) buffer;
1277
1278         buffer = malloc(sizeof (psinfo_t));
1279         memset(buffer, 0, sizeof(psinfo_t));
1280         read_file_contents(f_psinfo, buffer, sizeof (psinfo_t));
1281         myInfo = (psinfo_t *) buffer;
1282
1283         buffer = malloc(sizeof (prusage_t));
1284         memset(buffer, 0, sizeof(prusage_t));
1285         read_file_contents(f_usage, buffer, sizeof (prusage_t));
1286         myUsage = (prusage_t *) buffer;
1287
1288         sstrncpy(ps->name, myInfo->pr_fname, sizeof (myInfo->pr_fname));
1289         ps->num_lwp = myStatus->pr_nlwp;
1290         if (myInfo->pr_wstat != 0) {
1291                 ps->num_proc = 0;
1292                 ps->num_lwp = 0;
1293                 *state = (char) 'Z';
1294                 return (0);
1295         } else {
1296                 ps->num_proc = 1;
1297                 ps->num_lwp = myInfo->pr_nlwp;
1298         }
1299
1300         /*
1301          * Convert system time and user time from nanoseconds to microseconds
1302          * for compatibility with the linux module
1303          */
1304         ps->cpu_system_counter = myStatus -> pr_stime.tv_nsec / 1000;
1305         ps->cpu_user_counter = myStatus -> pr_utime.tv_nsec / 1000;
1306
1307         /*
1308          * Convert rssize from KB to bytes to be consistent w/ the linux module
1309          */
1310         ps->vmem_rss = myInfo->pr_rssize * 1024;
1311         ps->vmem_size = myInfo->pr_size * 1024;
1312         ps->vmem_minflt_counter = myUsage->pr_minf;
1313         ps->vmem_majflt_counter = myUsage->pr_majf;
1314
1315         /*
1316          * TODO: Data and code segment calculations for Solaris
1317          */
1318
1319         ps->vmem_data = -1;
1320         ps->vmem_code = -1;
1321         ps->stack_size = myStatus->pr_stksize;
1322
1323         /*
1324          * Calculating input/ouput chars
1325          * Formula used is total chars / total blocks => chars/block
1326          * then convert input/output blocks to chars
1327          */
1328         ulong_t tot_chars = myUsage->pr_ioch;
1329         ulong_t tot_blocks = myUsage->pr_inblk + myUsage->pr_oublk;
1330         ulong_t chars_per_block = 1;
1331         if (tot_blocks != 0)
1332                 chars_per_block = tot_chars / tot_blocks;
1333         ps->io_rchar = myUsage->pr_inblk * chars_per_block;
1334         ps->io_wchar = myUsage->pr_oublk * chars_per_block;
1335         ps->io_syscr = myUsage->pr_sysc;
1336         ps->io_syscw = myUsage->pr_sysc;
1337
1338
1339         /*
1340          * TODO: Find way of setting BLOCKED and PAGING status
1341          */
1342
1343         *state = (char) 'R';
1344         if (myStatus->pr_flags & PR_ASLEEP)
1345                 *state = (char) 'S';
1346         else if (myStatus->pr_flags & PR_STOPPED)
1347                 *state = (char) 'T';
1348         else if (myStatus->pr_flags & PR_DETACH)
1349                 *state = (char) 'E';
1350         else if (myStatus->pr_flags & PR_DAEMON)
1351                 *state = (char) 'A';
1352         else if (myStatus->pr_flags & PR_ISSYS)
1353                 *state = (char) 'Y';
1354         else if (myStatus->pr_flags & PR_ORPHAN)
1355                 *state = (char) 'O';
1356
1357         sfree(myStatus);
1358         sfree(myInfo);
1359         sfree(myUsage);
1360
1361         return (0);
1362 }
1363
1364 /*
1365  * Reads the number of threads created since the last reboot. On Solaris these
1366  * are retrieved from kstat (module cpu, name sys, class misc, stat nthreads).
1367  * The result is the sum for all the threads created on each cpu
1368  */
1369 static int read_fork_rate()
1370 {
1371         extern kstat_ctl_t *kc;
1372         kstat_t *ksp_chain = NULL;
1373         derive_t result = 0;
1374
1375         if (kc == NULL)
1376                 return (-1);
1377
1378         for (ksp_chain = kc->kc_chain;
1379                         ksp_chain != NULL;
1380                         ksp_chain = ksp_chain->ks_next)
1381         {
1382                 if ((strcmp (ksp_chain->ks_module, "cpu") == 0)
1383                                 && (strcmp (ksp_chain->ks_name, "sys") == 0)
1384                                 && (strcmp (ksp_chain->ks_class, "misc") == 0))
1385                 {
1386                         long long tmp;
1387
1388                         kstat_read (kc, ksp_chain, NULL);
1389
1390                         tmp = get_kstat_value(ksp_chain, "nthreads");
1391                         if (tmp != -1LL)
1392                                 result += tmp;
1393                 }
1394         }
1395
1396         ps_submit_fork_rate (result);
1397         return (0);
1398 }
1399 #endif /* KERNEL_SOLARIS */
1400
1401 #if HAVE_THREAD_INFO
1402 static int mach_get_task_name (task_t t, int *pid, char *name, size_t name_max_len)
1403 {
1404         int mib[4];
1405
1406         struct kinfo_proc kp;
1407         size_t            kp_size;
1408
1409         mib[0] = CTL_KERN;
1410         mib[1] = KERN_PROC;
1411         mib[2] = KERN_PROC_PID;
1412
1413         if (pid_for_task (t, pid) != KERN_SUCCESS)
1414                 return (-1);
1415         mib[3] = *pid;
1416
1417         kp_size = sizeof (kp);
1418         if (sysctl (mib, 4, &kp, &kp_size, NULL, 0) != 0)
1419                 return (-1);
1420
1421         if (name_max_len > (MAXCOMLEN + 1))
1422                 name_max_len = MAXCOMLEN + 1;
1423
1424         strncpy (name, kp.kp_proc.p_comm, name_max_len - 1);
1425         name[name_max_len - 1] = '\0';
1426
1427         DEBUG ("pid = %i; name = %s;", *pid, name);
1428
1429         /* We don't do the special handling for `p_comm == "LaunchCFMApp"' as
1430          * `top' does it, because it is a lot of work and only used when
1431          * debugging. -octo */
1432
1433         return (0);
1434 }
1435 #endif /* HAVE_THREAD_INFO */
1436 /* ------- end of additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
1437
1438 /* do actual readings from kernel */
1439 static int ps_read (void)
1440 {
1441 #if HAVE_THREAD_INFO
1442         kern_return_t            status;
1443
1444         int                      pset;
1445         processor_set_t          port_pset_priv;
1446
1447         int                      task;
1448         task_array_t             task_list;
1449         mach_msg_type_number_t   task_list_len;
1450
1451         int                      task_pid;
1452         char                     task_name[MAXCOMLEN + 1];
1453
1454         int                      thread;
1455         thread_act_array_t       thread_list;
1456         mach_msg_type_number_t   thread_list_len;
1457         thread_basic_info_data_t thread_data;
1458         mach_msg_type_number_t   thread_data_len;
1459
1460         int running  = 0;
1461         int sleeping = 0;
1462         int zombies  = 0;
1463         int stopped  = 0;
1464         int blocked  = 0;
1465
1466         procstat_t *ps;
1467         procstat_entry_t pse;
1468
1469         ps_list_reset ();
1470
1471         /*
1472          * The Mach-concept is a little different from the traditional UNIX
1473          * concept: All the work is done in threads. Threads are contained in
1474          * `tasks'. Therefore, `task status' doesn't make much sense, since
1475          * it's actually a `thread status'.
1476          * Tasks are assigned to sets of processors, so that's where you go to
1477          * get a list.
1478          */
1479         for (pset = 0; pset < pset_list_len; pset++)
1480         {
1481                 if ((status = host_processor_set_priv (port_host_self,
1482                                                 pset_list[pset],
1483                                                 &port_pset_priv)) != KERN_SUCCESS)
1484                 {
1485                         ERROR ("host_processor_set_priv failed: %s\n",
1486                                         mach_error_string (status));
1487                         continue;
1488                 }
1489
1490                 if ((status = processor_set_tasks (port_pset_priv,
1491                                                 &task_list,
1492                                                 &task_list_len)) != KERN_SUCCESS)
1493                 {
1494                         ERROR ("processor_set_tasks failed: %s\n",
1495                                         mach_error_string (status));
1496                         mach_port_deallocate (port_task_self, port_pset_priv);
1497                         continue;
1498                 }
1499
1500                 for (task = 0; task < task_list_len; task++)
1501                 {
1502                         ps = NULL;
1503                         if (mach_get_task_name (task_list[task],
1504                                                 &task_pid,
1505                                                 task_name, PROCSTAT_NAME_LEN) == 0)
1506                         {
1507                                 /* search for at least one match */
1508                                 for (ps = list_head_g; ps != NULL; ps = ps->next)
1509                                         /* FIXME: cmdline should be here instead of NULL */
1510                                         if (ps_list_match (task_name, NULL, ps) == 1)
1511                                                 break;
1512                         }
1513
1514                         /* Collect more detailed statistics for this process */
1515                         if (ps != NULL)
1516                         {
1517                                 task_basic_info_data_t        task_basic_info;
1518                                 mach_msg_type_number_t        task_basic_info_len;
1519                                 task_events_info_data_t       task_events_info;
1520                                 mach_msg_type_number_t        task_events_info_len;
1521                                 task_absolutetime_info_data_t task_absolutetime_info;
1522                                 mach_msg_type_number_t        task_absolutetime_info_len;
1523
1524                                 memset (&pse, '\0', sizeof (pse));
1525                                 pse.id = task_pid;
1526
1527                                 task_basic_info_len = TASK_BASIC_INFO_COUNT;
1528                                 status = task_info (task_list[task],
1529                                                 TASK_BASIC_INFO,
1530                                                 (task_info_t) &task_basic_info,
1531                                                 &task_basic_info_len);
1532                                 if (status != KERN_SUCCESS)
1533                                 {
1534                                         ERROR ("task_info failed: %s",
1535                                                         mach_error_string (status));
1536                                         continue; /* with next thread_list */
1537                                 }
1538
1539                                 task_events_info_len = TASK_EVENTS_INFO_COUNT;
1540                                 status = task_info (task_list[task],
1541                                                 TASK_EVENTS_INFO,
1542                                                 (task_info_t) &task_events_info,
1543                                                 &task_events_info_len);
1544                                 if (status != KERN_SUCCESS)
1545                                 {
1546                                         ERROR ("task_info failed: %s",
1547                                                         mach_error_string (status));
1548                                         continue; /* with next thread_list */
1549                                 }
1550
1551                                 task_absolutetime_info_len = TASK_ABSOLUTETIME_INFO_COUNT;
1552                                 status = task_info (task_list[task],
1553                                                 TASK_ABSOLUTETIME_INFO,
1554                                                 (task_info_t) &task_absolutetime_info,
1555                                                 &task_absolutetime_info_len);
1556                                 if (status != KERN_SUCCESS)
1557                                 {
1558                                         ERROR ("task_info failed: %s",
1559                                                         mach_error_string (status));
1560                                         continue; /* with next thread_list */
1561                                 }
1562
1563                                 pse.num_proc++;
1564                                 pse.vmem_size = task_basic_info.virtual_size;
1565                                 pse.vmem_rss = task_basic_info.resident_size;
1566                                 /* Does not seem to be easily exposed */
1567                                 pse.vmem_data = 0;
1568                                 pse.vmem_code = 0;
1569
1570                                 pse.vmem_minflt_counter = task_events_info.cow_faults;
1571                                 pse.vmem_majflt_counter = task_events_info.faults;
1572
1573                                 pse.cpu_user_counter = task_absolutetime_info.total_user;
1574                                 pse.cpu_system_counter = task_absolutetime_info.total_system;
1575                         }
1576
1577                         status = task_threads (task_list[task], &thread_list,
1578                                         &thread_list_len);
1579                         if (status != KERN_SUCCESS)
1580                         {
1581                                 /* Apple's `top' treats this case a zombie. It
1582                                  * makes sense to some extend: A `zombie'
1583                                  * thread is nonsense, since the task/process
1584                                  * is dead. */
1585                                 zombies++;
1586                                 DEBUG ("task_threads failed: %s",
1587                                                 mach_error_string (status));
1588                                 if (task_list[task] != port_task_self)
1589                                         mach_port_deallocate (port_task_self,
1590                                                         task_list[task]);
1591                                 continue; /* with next task_list */
1592                         }
1593
1594                         for (thread = 0; thread < thread_list_len; thread++)
1595                         {
1596                                 thread_data_len = THREAD_BASIC_INFO_COUNT;
1597                                 status = thread_info (thread_list[thread],
1598                                                 THREAD_BASIC_INFO,
1599                                                 (thread_info_t) &thread_data,
1600                                                 &thread_data_len);
1601                                 if (status != KERN_SUCCESS)
1602                                 {
1603                                         ERROR ("thread_info failed: %s",
1604                                                         mach_error_string (status));
1605                                         if (task_list[task] != port_task_self)
1606                                                 mach_port_deallocate (port_task_self,
1607                                                                 thread_list[thread]);
1608                                         continue; /* with next thread_list */
1609                                 }
1610
1611                                 if (ps != NULL)
1612                                         pse.num_lwp++;
1613
1614                                 switch (thread_data.run_state)
1615                                 {
1616                                         case TH_STATE_RUNNING:
1617                                                 running++;
1618                                                 break;
1619                                         case TH_STATE_STOPPED:
1620                                         /* What exactly is `halted'? */
1621                                         case TH_STATE_HALTED:
1622                                                 stopped++;
1623                                                 break;
1624                                         case TH_STATE_WAITING:
1625                                                 sleeping++;
1626                                                 break;
1627                                         case TH_STATE_UNINTERRUPTIBLE:
1628                                                 blocked++;
1629                                                 break;
1630                                         /* There is no `zombie' case here,
1631                                          * since there are no zombie-threads.
1632                                          * There's only zombie tasks, which are
1633                                          * handled above. */
1634                                         default:
1635                                                 WARNING ("Unknown thread status: %i",
1636                                                                 thread_data.run_state);
1637                                                 break;
1638                                 } /* switch (thread_data.run_state) */
1639
1640                                 if (task_list[task] != port_task_self)
1641                                 {
1642                                         status = mach_port_deallocate (port_task_self,
1643                                                         thread_list[thread]);
1644                                         if (status != KERN_SUCCESS)
1645                                                 ERROR ("mach_port_deallocate failed: %s",
1646                                                                 mach_error_string (status));
1647                                 }
1648                         } /* for (thread_list) */
1649
1650                         if ((status = vm_deallocate (port_task_self,
1651                                                         (vm_address_t) thread_list,
1652                                                         thread_list_len * sizeof (thread_act_t)))
1653                                         != KERN_SUCCESS)
1654                         {
1655                                 ERROR ("vm_deallocate failed: %s",
1656                                                 mach_error_string (status));
1657                         }
1658                         thread_list = NULL;
1659                         thread_list_len = 0;
1660
1661                         /* Only deallocate the task port, if it isn't our own.
1662                          * Don't know what would happen in that case, but this
1663                          * is what Apple's top does.. ;) */
1664                         if (task_list[task] != port_task_self)
1665                         {
1666                                 status = mach_port_deallocate (port_task_self,
1667                                                 task_list[task]);
1668                                 if (status != KERN_SUCCESS)
1669                                         ERROR ("mach_port_deallocate failed: %s",
1670                                                         mach_error_string (status));
1671                         }
1672
1673                         if (ps != NULL)
1674                                 /* FIXME: cmdline should be here instead of NULL */
1675                                 ps_list_add (task_name, NULL, &pse);
1676                 } /* for (task_list) */
1677
1678                 if ((status = vm_deallocate (port_task_self,
1679                                 (vm_address_t) task_list,
1680                                 task_list_len * sizeof (task_t))) != KERN_SUCCESS)
1681                 {
1682                         ERROR ("vm_deallocate failed: %s",
1683                                         mach_error_string (status));
1684                 }
1685                 task_list = NULL;
1686                 task_list_len = 0;
1687
1688                 if ((status = mach_port_deallocate (port_task_self, port_pset_priv))
1689                                 != KERN_SUCCESS)
1690                 {
1691                         ERROR ("mach_port_deallocate failed: %s",
1692                                         mach_error_string (status));
1693                 }
1694         } /* for (pset_list) */
1695
1696         ps_submit_state ("running", running);
1697         ps_submit_state ("sleeping", sleeping);
1698         ps_submit_state ("zombies", zombies);
1699         ps_submit_state ("stopped", stopped);
1700         ps_submit_state ("blocked", blocked);
1701
1702         for (ps = list_head_g; ps != NULL; ps = ps->next)
1703                 ps_submit_proc_list (ps);
1704 /* #endif HAVE_THREAD_INFO */
1705
1706 #elif KERNEL_LINUX
1707         int running  = 0;
1708         int sleeping = 0;
1709         int zombies  = 0;
1710         int stopped  = 0;
1711         int paging   = 0;
1712         int blocked  = 0;
1713
1714         struct dirent *ent;
1715         DIR           *proc;
1716         int            pid;
1717
1718         char cmdline[CMDLINE_BUFFER_SIZE];
1719
1720         int        status;
1721         procstat_t ps;
1722         procstat_entry_t pse;
1723         char       state;
1724
1725         procstat_t *ps_ptr;
1726
1727         running = sleeping = zombies = stopped = paging = blocked = 0;
1728         ps_list_reset ();
1729
1730         if ((proc = opendir ("/proc")) == NULL)
1731         {
1732                 char errbuf[1024];
1733                 ERROR ("Cannot open `/proc': %s",
1734                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1735                 return (-1);
1736         }
1737
1738         while ((ent = readdir (proc)) != NULL)
1739         {
1740                 if (!isdigit (ent->d_name[0]))
1741                         continue;
1742
1743                 if ((pid = atoi (ent->d_name)) < 1)
1744                         continue;
1745
1746                 status = ps_read_process (pid, &ps, &state);
1747                 if (status != 0)
1748                 {
1749                         DEBUG ("ps_read_process failed: %i", status);
1750                         continue;
1751                 }
1752
1753                 pse.id       = pid;
1754                 pse.age      = 0;
1755
1756                 pse.num_proc   = ps.num_proc;
1757                 pse.num_lwp    = ps.num_lwp;
1758                 pse.vmem_size  = ps.vmem_size;
1759                 pse.vmem_rss   = ps.vmem_rss;
1760                 pse.vmem_data  = ps.vmem_data;
1761                 pse.vmem_code  = ps.vmem_code;
1762                 pse.stack_size = ps.stack_size;
1763
1764                 pse.vmem_minflt = 0;
1765                 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
1766                 pse.vmem_majflt = 0;
1767                 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
1768
1769                 pse.cpu_user = 0;
1770                 pse.cpu_user_counter = ps.cpu_user_counter;
1771                 pse.cpu_system = 0;
1772                 pse.cpu_system_counter = ps.cpu_system_counter;
1773
1774                 pse.io_rchar = ps.io_rchar;
1775                 pse.io_wchar = ps.io_wchar;
1776                 pse.io_syscr = ps.io_syscr;
1777                 pse.io_syscw = ps.io_syscw;
1778
1779                 switch (state)
1780                 {
1781                         case 'R': running++;  break;
1782                         case 'S': sleeping++; break;
1783                         case 'D': blocked++;  break;
1784                         case 'Z': zombies++;  break;
1785                         case 'T': stopped++;  break;
1786                         case 'W': paging++;   break;
1787                 }
1788
1789                 ps_list_add (ps.name,
1790                                 ps_get_cmdline (pid, ps.name, cmdline, sizeof (cmdline)),
1791                                 &pse);
1792         }
1793
1794         closedir (proc);
1795
1796         ps_submit_state ("running",  running);
1797         ps_submit_state ("sleeping", sleeping);
1798         ps_submit_state ("zombies",  zombies);
1799         ps_submit_state ("stopped",  stopped);
1800         ps_submit_state ("paging",   paging);
1801         ps_submit_state ("blocked",  blocked);
1802
1803         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
1804                 ps_submit_proc_list (ps_ptr);
1805
1806         read_fork_rate();
1807 /* #endif KERNEL_LINUX */
1808
1809 #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD
1810         int running  = 0;
1811         int sleeping = 0;
1812         int zombies  = 0;
1813         int stopped  = 0;
1814         int blocked  = 0;
1815         int idle     = 0;
1816         int wait     = 0;
1817
1818         kvm_t *kd;
1819         char errbuf[_POSIX2_LINE_MAX];
1820         struct kinfo_proc *procs;          /* array of processes */
1821         struct kinfo_proc *proc_ptr = NULL;
1822         int count;                         /* returns number of processes */
1823         int i;
1824
1825         procstat_t *ps_ptr;
1826         procstat_entry_t pse;
1827
1828         ps_list_reset ();
1829
1830         /* Open the kvm interface, get a descriptor */
1831         kd = kvm_openfiles (NULL, "/dev/null", NULL, 0, errbuf);
1832         if (kd == NULL)
1833         {
1834                 ERROR ("processes plugin: Cannot open kvm interface: %s",
1835                                 errbuf);
1836                 return (0);
1837         }
1838
1839         /* Get the list of processes. */
1840         procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, &count);
1841         if (procs == NULL)
1842         {
1843                 ERROR ("processes plugin: Cannot get kvm processes list: %s",
1844                                 kvm_geterr(kd));
1845                 kvm_close (kd);
1846                 return (0);
1847         }
1848
1849         /* Iterate through the processes in kinfo_proc */
1850         for (i = 0; i < count; i++)
1851         {
1852                 /* Create only one process list entry per _process_, i.e.
1853                  * filter out threads (duplicate PID entries). */
1854                 if ((proc_ptr == NULL) || (proc_ptr->ki_pid != procs[i].ki_pid))
1855                 {
1856                         char cmdline[CMDLINE_BUFFER_SIZE] = "";
1857                         _Bool have_cmdline = 0;
1858
1859                         proc_ptr = &(procs[i]);
1860                         /* Don't probe system processes and processes without arguments */
1861                         if (((procs[i].ki_flag & P_SYSTEM) == 0)
1862                                         && (procs[i].ki_args != NULL))
1863                         {
1864                                 char **argv;
1865                                 int argc;
1866                                 int status;
1867
1868                                 /* retrieve the arguments */
1869                                 argv = kvm_getargv (kd, proc_ptr, /* nchr = */ 0);
1870                                 argc = 0;
1871                                 if ((argv != NULL) && (argv[0] != NULL))
1872                                 {
1873                                         while (argv[argc] != NULL)
1874                                                 argc++;
1875
1876                                         status = strjoin (cmdline, sizeof (cmdline), argv, argc, " ");
1877                                         if (status < 0)
1878                                                 WARNING ("processes plugin: Command line did not fit into buffer.");
1879                                         else
1880                                                 have_cmdline = 1;
1881                                 }
1882                         } /* if (process has argument list) */
1883
1884                         pse.id       = procs[i].ki_pid;
1885                         pse.age      = 0;
1886
1887                         pse.num_proc = 1;
1888                         pse.num_lwp  = procs[i].ki_numthreads;
1889
1890                         pse.vmem_size = procs[i].ki_size;
1891                         pse.vmem_rss = procs[i].ki_rssize * pagesize;
1892                         pse.vmem_data = procs[i].ki_dsize * pagesize;
1893                         pse.vmem_code = procs[i].ki_tsize * pagesize;
1894                         pse.stack_size = procs[i].ki_ssize * pagesize;
1895                         pse.vmem_minflt = 0;
1896                         pse.vmem_minflt_counter = procs[i].ki_rusage.ru_minflt;
1897                         pse.vmem_majflt = 0;
1898                         pse.vmem_majflt_counter = procs[i].ki_rusage.ru_majflt;
1899
1900                         pse.cpu_user = 0;
1901                         pse.cpu_system = 0;
1902                         pse.cpu_user_counter = 0;
1903                         pse.cpu_system_counter = 0;
1904                         /*
1905                          * The u-area might be swapped out, and we can't get
1906                          * at it because we have a crashdump and no swap.
1907                          * If it's here fill in these fields, otherwise, just
1908                          * leave them 0.
1909                          */
1910                         if (procs[i].ki_flag & P_INMEM)
1911                         {
1912                                 pse.cpu_user_counter = procs[i].ki_rusage.ru_utime.tv_usec
1913                                         + (1000000lu * procs[i].ki_rusage.ru_utime.tv_sec);
1914                                 pse.cpu_system_counter = procs[i].ki_rusage.ru_stime.tv_usec
1915                                         + (1000000lu * procs[i].ki_rusage.ru_stime.tv_sec);
1916                         }
1917
1918                         /* no I/O data */
1919                         pse.io_rchar = -1;
1920                         pse.io_wchar = -1;
1921                         pse.io_syscr = -1;
1922                         pse.io_syscw = -1;
1923
1924                         ps_list_add (procs[i].ki_comm, have_cmdline ? cmdline : NULL, &pse);
1925                 } /* if ((proc_ptr == NULL) || (proc_ptr->ki_pid != procs[i].ki_pid)) */
1926
1927                 switch (procs[i].ki_stat)
1928                 {
1929                         case SSTOP:     stopped++;      break;
1930                         case SSLEEP:    sleeping++;     break;
1931                         case SRUN:      running++;      break;
1932                         case SIDL:      idle++;         break;
1933                         case SWAIT:     wait++;         break;
1934                         case SLOCK:     blocked++;      break;
1935                         case SZOMB:     zombies++;      break;
1936                 }
1937         }
1938
1939         kvm_close(kd);
1940
1941         ps_submit_state ("running",  running);
1942         ps_submit_state ("sleeping", sleeping);
1943         ps_submit_state ("zombies",  zombies);
1944         ps_submit_state ("stopped",  stopped);
1945         ps_submit_state ("blocked",  blocked);
1946         ps_submit_state ("idle",     idle);
1947         ps_submit_state ("wait",     wait);
1948
1949         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
1950                 ps_submit_proc_list (ps_ptr);
1951 /* #endif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD */
1952
1953 #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_OPENBSD
1954         int running  = 0;
1955         int sleeping = 0;
1956         int zombies  = 0;
1957         int stopped  = 0;
1958         int onproc   = 0;
1959         int idle     = 0;
1960         int dead     = 0;
1961
1962         kvm_t *kd;
1963         char errbuf[1024];
1964         struct kinfo_proc *procs;          /* array of processes */
1965         struct kinfo_proc *proc_ptr = NULL;
1966         int count;                         /* returns number of processes */
1967         int i;
1968
1969         procstat_t *ps_ptr;
1970         procstat_entry_t pse;
1971
1972         ps_list_reset ();
1973
1974         /* Open the kvm interface, get a descriptor */
1975         kd = kvm_open (NULL, NULL, NULL, 0, errbuf);
1976         if (kd == NULL)
1977         {
1978                 ERROR ("processes plugin: Cannot open kvm interface: %s",
1979                                 errbuf);
1980                 return (0);
1981         }
1982
1983         /* Get the list of processes. */
1984         procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, sizeof(struct kinfo_proc), &count);
1985         if (procs == NULL)
1986         {
1987                 ERROR ("processes plugin: Cannot get kvm processes list: %s",
1988                                 kvm_geterr(kd));
1989                 kvm_close (kd);
1990                 return (0);
1991         }
1992
1993         /* Iterate through the processes in kinfo_proc */
1994         for (i = 0; i < count; i++)
1995         {
1996                 /* Create only one process list entry per _process_, i.e.
1997                  * filter out threads (duplicate PID entries). */
1998                 if ((proc_ptr == NULL) || (proc_ptr->p_pid != procs[i].p_pid))
1999                 {
2000                         char cmdline[CMDLINE_BUFFER_SIZE] = "";
2001                         _Bool have_cmdline = 0;
2002
2003                         proc_ptr = &(procs[i]);
2004                         /* Don't probe zombie processes  */
2005                         if (!P_ZOMBIE(proc_ptr))
2006                         {
2007                                 char **argv;
2008                                 int argc;
2009                                 int status;
2010
2011                                 /* retrieve the arguments */
2012                                 argv = kvm_getargv (kd, proc_ptr, /* nchr = */ 0);
2013                                 argc = 0;
2014                                 if ((argv != NULL) && (argv[0] != NULL))
2015                                 {
2016                                         while (argv[argc] != NULL)
2017                                                 argc++;
2018
2019                                         status = strjoin (cmdline, sizeof (cmdline), argv, argc, " ");
2020                                         if (status < 0)
2021                                                 WARNING ("processes plugin: Command line did not fit into buffer.");
2022                                         else
2023                                                 have_cmdline = 1;
2024                                 }
2025                         } /* if (process has argument list) */
2026
2027                         pse.id       = procs[i].p_pid;
2028                         pse.age      = 0;
2029
2030                         pse.num_proc = 1;
2031                         pse.num_lwp  = 1; /* XXX: accumulate p_tid values for a single p_pid ? */
2032
2033                         pse.vmem_rss = procs[i].p_vm_rssize * pagesize;
2034                         pse.vmem_data = procs[i].p_vm_dsize * pagesize;
2035                         pse.vmem_code = procs[i].p_vm_tsize * pagesize;
2036                         pse.stack_size = procs[i].p_vm_ssize * pagesize;
2037                         pse.vmem_size = pse.stack_size + pse.vmem_code + pse.vmem_data;
2038                         pse.vmem_minflt = 0;
2039                         pse.vmem_minflt_counter = procs[i].p_uru_minflt;
2040                         pse.vmem_majflt = 0;
2041                         pse.vmem_majflt_counter = procs[i].p_uru_majflt;
2042
2043                         pse.cpu_user = 0;
2044                         pse.cpu_system = 0;
2045                         pse.cpu_user_counter = procs[i].p_uutime_usec +
2046                                                 (1000000lu * procs[i].p_uutime_sec);
2047                         pse.cpu_system_counter = procs[i].p_ustime_usec +
2048                                                 (1000000lu * procs[i].p_ustime_sec);
2049
2050                         /* no I/O data */
2051                         pse.io_rchar = -1;
2052                         pse.io_wchar = -1;
2053                         pse.io_syscr = -1;
2054                         pse.io_syscw = -1;
2055
2056                         ps_list_add (procs[i].p_comm, have_cmdline ? cmdline : NULL, &pse);
2057                 } /* if ((proc_ptr == NULL) || (proc_ptr->p_pid != procs[i].p_pid)) */
2058
2059                 switch (procs[i].p_stat)
2060                 {
2061                         case SSTOP:     stopped++;      break;
2062                         case SSLEEP:    sleeping++;     break;
2063                         case SRUN:      running++;      break;
2064                         case SIDL:      idle++;         break;
2065                         case SONPROC:   onproc++;       break;
2066                         case SDEAD:     dead++;         break;
2067                         case SZOMB:     zombies++;      break;
2068                 }
2069         }
2070
2071         kvm_close(kd);
2072
2073         ps_submit_state ("running",  running);
2074         ps_submit_state ("sleeping", sleeping);
2075         ps_submit_state ("zombies",  zombies);
2076         ps_submit_state ("stopped",  stopped);
2077         ps_submit_state ("onproc",   onproc);
2078         ps_submit_state ("idle",     idle);
2079         ps_submit_state ("dead",     dead);
2080
2081         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2082                 ps_submit_proc_list (ps_ptr);
2083 /* #endif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_OPENBSD */
2084
2085 #elif HAVE_PROCINFO_H
2086         /* AIX */
2087         int running  = 0;
2088         int sleeping = 0;
2089         int zombies  = 0;
2090         int stopped  = 0;
2091         int paging   = 0;
2092         int blocked  = 0;
2093
2094         pid_t pindex = 0;
2095         int nprocs;
2096
2097         procstat_t *ps;
2098         procstat_entry_t pse;
2099
2100         ps_list_reset ();
2101         while ((nprocs = getprocs64 (procentry, sizeof(struct procentry64),
2102                                         /* fdsinfo = */ NULL, sizeof(struct fdsinfo64),
2103                                         &pindex, MAXPROCENTRY)) > 0)
2104         {
2105                 int i;
2106
2107                 for (i = 0; i < nprocs; i++)
2108                 {
2109                         tid64_t thindex;
2110                         int nthreads;
2111                         char arglist[MAXARGLN+1];
2112                         char *cargs;
2113                         char *cmdline;
2114
2115                         if (procentry[i].pi_state == SNONE) continue;
2116                         /* if (procentry[i].pi_state == SZOMB)  FIXME */
2117
2118                         cmdline = procentry[i].pi_comm;
2119                         cargs = procentry[i].pi_comm;
2120                         if ( procentry[i].pi_flags & SKPROC )
2121                         {
2122                                 if (procentry[i].pi_pid == 0)
2123                                         cmdline = "swapper";
2124                                 cargs = cmdline;
2125                         }
2126                         else
2127                         {
2128                                 if (getargs(&procentry[i], sizeof(struct procentry64), arglist, MAXARGLN) >= 0)
2129                                 {
2130                                         int n;
2131
2132                                         n = -1;
2133                                         while (++n < MAXARGLN)
2134                                         {
2135                                                 if (arglist[n] == '\0')
2136                                                 {
2137                                                         if (arglist[n+1] == '\0')
2138                                                                 break;
2139                                                         arglist[n] = ' ';
2140                                                 }
2141                                         }
2142                                         cargs = arglist;
2143                                 }
2144                         }
2145
2146                         pse.id       = procentry[i].pi_pid;
2147                         pse.age      = 0;
2148                         pse.num_lwp  = procentry[i].pi_thcount;
2149                         pse.num_proc = 1;
2150
2151                         thindex=0;
2152                         while ((nthreads = getthrds64(procentry[i].pi_pid,
2153                                                         thrdentry, sizeof(struct thrdentry64),
2154                                                         &thindex, MAXTHRDENTRY)) > 0)
2155                         {
2156                                 int j;
2157
2158                                 for (j=0; j< nthreads; j++)
2159                                 {
2160                                         switch (thrdentry[j].ti_state)
2161                                         {
2162                                                 /* case TSNONE: break; */
2163                                                 case TSIDL:     blocked++;      break; /* FIXME is really blocked */
2164                                                 case TSRUN:     running++;      break;
2165                                                 case TSSLEEP:   sleeping++;     break;
2166                                                 case TSSWAP:    paging++;       break;
2167                                                 case TSSTOP:    stopped++;      break;
2168                                                 case TSZOMB:    zombies++;      break;
2169                                         }
2170                                 }
2171                                 if (nthreads < MAXTHRDENTRY)
2172                                         break;
2173                         }
2174
2175                         pse.cpu_user = 0;
2176                         /* tv_usec is nanosec ??? */
2177                         pse.cpu_user_counter = procentry[i].pi_ru.ru_utime.tv_sec * 1000000 +
2178                                 procentry[i].pi_ru.ru_utime.tv_usec / 1000;
2179
2180                         pse.cpu_system = 0;
2181                         /* tv_usec is nanosec ??? */
2182                         pse.cpu_system_counter = procentry[i].pi_ru.ru_stime.tv_sec * 1000000 +
2183                                 procentry[i].pi_ru.ru_stime.tv_usec / 1000;
2184
2185                         pse.vmem_minflt = 0;
2186                         pse.vmem_minflt_counter = procentry[i].pi_minflt;
2187                         pse.vmem_majflt = 0;
2188                         pse.vmem_majflt_counter = procentry[i].pi_majflt;
2189
2190                         pse.vmem_size = procentry[i].pi_tsize + procentry[i].pi_dvm * pagesize;
2191                         pse.vmem_rss = (procentry[i].pi_drss + procentry[i].pi_trss) * pagesize;
2192                         /* Not supported */
2193                         pse.vmem_data = 0;
2194                         pse.vmem_code = 0;
2195                         pse.stack_size =  0;
2196
2197                         pse.io_rchar = -1;
2198                         pse.io_wchar = -1;
2199                         pse.io_syscr = -1;
2200                         pse.io_syscw = -1;
2201
2202                         ps_list_add (cmdline, cargs, &pse);
2203                 } /* for (i = 0 .. nprocs) */
2204
2205                 if (nprocs < MAXPROCENTRY)
2206                         break;
2207         } /* while (getprocs64() > 0) */
2208         ps_submit_state ("running",  running);
2209         ps_submit_state ("sleeping", sleeping);
2210         ps_submit_state ("zombies",  zombies);
2211         ps_submit_state ("stopped",  stopped);
2212         ps_submit_state ("paging",   paging);
2213         ps_submit_state ("blocked",  blocked);
2214
2215         for (ps = list_head_g; ps != NULL; ps = ps->next)
2216                 ps_submit_proc_list (ps);
2217 /* #endif HAVE_PROCINFO_H */
2218
2219 #elif KERNEL_SOLARIS
2220         /*
2221          * The Solaris section adds a few more process states and removes some
2222          * process states compared to linux. Most notably there is no "PAGING"
2223          * and "BLOCKED" state for a process.  The rest is similar to the linux
2224          * code.
2225          */
2226         int running = 0;
2227         int sleeping = 0;
2228         int zombies = 0;
2229         int stopped = 0;
2230         int detached = 0;
2231         int daemon = 0;
2232         int system = 0;
2233         int orphan = 0;
2234
2235         struct dirent *ent;
2236         DIR *proc;
2237
2238         int status;
2239         procstat_t *ps_ptr;
2240         char state;
2241
2242         char cmdline[PRARGSZ];
2243
2244         ps_list_reset ();
2245
2246         proc = opendir ("/proc");
2247         if (proc == NULL)
2248                 return (-1);
2249
2250         while ((ent = readdir(proc)) != NULL)
2251         {
2252                 long pid;
2253                 struct procstat ps;
2254                 procstat_entry_t pse;
2255                 char *endptr;
2256
2257                 if (!isdigit ((int) ent->d_name[0]))
2258                         continue;
2259
2260                 pid = strtol (ent->d_name, &endptr, 10);
2261                 if (*endptr != 0) /* value didn't completely parse as a number */
2262                         continue;
2263
2264                 status = ps_read_process (pid, &ps, &state);
2265                 if (status != 0)
2266                 {
2267                         DEBUG("ps_read_process failed: %i", status);
2268                         continue;
2269                 }
2270
2271                 pse.id = pid;
2272                 pse.age = 0;
2273
2274                 pse.num_proc   = ps.num_proc;
2275                 pse.num_lwp    = ps.num_lwp;
2276                 pse.vmem_size  = ps.vmem_size;
2277                 pse.vmem_rss   = ps.vmem_rss;
2278                 pse.vmem_data  = ps.vmem_data;
2279                 pse.vmem_code  = ps.vmem_code;
2280                 pse.stack_size = ps.stack_size;
2281
2282                 pse.vmem_minflt = 0;
2283                 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
2284                 pse.vmem_majflt = 0;
2285                 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
2286
2287                 pse.cpu_user = 0;
2288                 pse.cpu_user_counter = ps.cpu_user_counter;
2289                 pse.cpu_system = 0;
2290                 pse.cpu_system_counter = ps.cpu_system_counter;
2291
2292                 pse.io_rchar = ps.io_rchar;
2293                 pse.io_wchar = ps.io_wchar;
2294                 pse.io_syscr = ps.io_syscr;
2295                 pse.io_syscw = ps.io_syscw;
2296
2297                 switch (state)
2298                 {
2299                         case 'R': running++;  break;
2300                         case 'S': sleeping++; break;
2301                         case 'E': detached++; break;
2302                         case 'Z': zombies++;  break;
2303                         case 'T': stopped++;  break;
2304                         case 'A': daemon++;   break;
2305                         case 'Y': system++;   break;
2306                         case 'O': orphan++;   break;
2307                 }
2308
2309
2310                 ps_list_add (ps.name,
2311                                 ps_get_cmdline (pid, cmdline, sizeof (cmdline)),
2312                                 &pse);
2313         } /* while(readdir) */
2314         closedir (proc);
2315
2316         ps_submit_state ("running",  running);
2317         ps_submit_state ("sleeping", sleeping);
2318         ps_submit_state ("zombies",  zombies);
2319         ps_submit_state ("stopped",  stopped);
2320         ps_submit_state ("detached", detached);
2321         ps_submit_state ("daemon",   daemon);
2322         ps_submit_state ("system",   system);
2323         ps_submit_state ("orphan",   orphan);
2324
2325         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2326                 ps_submit_proc_list (ps_ptr);
2327
2328         read_fork_rate();
2329 #endif /* KERNEL_SOLARIS */
2330
2331         return (0);
2332 } /* int ps_read */
2333
2334 void module_register (void)
2335 {
2336         plugin_register_complex_config ("processes", ps_config);
2337         plugin_register_init ("processes", ps_init);
2338         plugin_register_read ("processes", ps_read);
2339 } /* void module_register */